./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:32:13,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:32:13,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:32:13,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:32:13,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:32:13,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:32:13,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:32:13,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:32:13,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:32:13,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:32:13,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:32:13,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:32:13,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:32:13,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:32:13,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:32:13,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:32:13,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:32:13,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:32:13,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:32:13,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:32:13,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:32:13,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:32:13,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:32:13,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:32:13,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:32:13,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:32:13,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:32:13,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:32:13,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:32:13,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:32:13,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:32:13,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:32:13,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:32:13,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:32:13,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:32:13,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:32:13,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:32:13,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:32:13,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:32:13,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:32:13,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:32:13,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:32:13,286 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:32:13,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:32:13,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:32:13,287 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:32:13,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:32:13,288 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:32:13,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:32:13,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:32:13,289 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:32:13,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:32:13,289 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:32:13,290 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:32:13,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:32:13,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:32:13,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:32:13,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:32:13,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:32:13,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:32:13,291 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:32:13,291 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:32:13,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:32:13,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:32:13,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:32:13,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:32:13,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:32:13,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:32:13,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:13,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:32:13,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:32:13,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:32:13,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:32:13,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:32:13,294 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:32:13,294 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:32:13,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:32:13,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2022-11-20 10:32:13,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:32:13,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:32:13,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:32:13,657 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:32:13,658 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:32:13,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-11-20 10:32:16,773 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:32:17,039 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:32:17,039 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-11-20 10:32:17,053 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/data/acef9724f/284284ea47364400b29b773901082f97/FLAGa5752d0b6 [2022-11-20 10:32:17,074 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/data/acef9724f/284284ea47364400b29b773901082f97 [2022-11-20 10:32:17,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:32:17,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:32:17,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:17,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:32:17,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:32:17,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12169664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17, skipping insertion in model container [2022-11-20 10:32:17,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:32:17,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:32:17,455 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-11-20 10:32:17,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:17,720 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:32:17,734 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-11-20 10:32:17,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:17,836 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:32:17,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17 WrapperNode [2022-11-20 10:32:17,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:17,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:17,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:32:17,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:32:17,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,920 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 122 [2022-11-20 10:32:17,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:17,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:32:17,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:32:17,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:32:17,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,968 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:32:17,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:32:17,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:32:17,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:32:17,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (1/1) ... [2022-11-20 10:32:17,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:18,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:18,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:32:18,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:32:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:32:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-20 10:32:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-20 10:32:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:32:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 10:32:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:32:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:32:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 10:32:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 10:32:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:32:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:32:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:32:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:32:18,078 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:32:18,267 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:32:18,282 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:32:18,779 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:32:18,789 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:32:18,790 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:32:18,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:18 BoogieIcfgContainer [2022-11-20 10:32:18,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:32:18,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:32:18,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:32:18,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:32:18,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:32:17" (1/3) ... [2022-11-20 10:32:18,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12090c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:18, skipping insertion in model container [2022-11-20 10:32:18,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:17" (2/3) ... [2022-11-20 10:32:18,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12090c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:18, skipping insertion in model container [2022-11-20 10:32:18,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:18" (3/3) ... [2022-11-20 10:32:18,805 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2022-11-20 10:32:18,814 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:32:18,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:32:18,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-20 10:32:18,828 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:32:18,956 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 10:32:19,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 211 transitions, 438 flow [2022-11-20 10:32:19,142 INFO L130 PetriNetUnfolder]: 4/209 cut-off events. [2022-11-20 10:32:19,143 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 10:32:19,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 209 events. 4/209 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 252 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-11-20 10:32:19,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 211 transitions, 438 flow [2022-11-20 10:32:19,160 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 199 transitions, 407 flow [2022-11-20 10:32:19,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:32:19,183 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7aec8755, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:32:19,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-20 10:32:19,216 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-11-20 10:32:19,219 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:32:19,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:19,220 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:19,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 10:32:19,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:19,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1475861614, now seen corresponding path program 1 times [2022-11-20 10:32:19,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:19,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548298916] [2022-11-20 10:32:19,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:19,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:19,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:19,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548298916] [2022-11-20 10:32:19,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548298916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:19,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:19,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:32:19,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38575531] [2022-11-20 10:32:19,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:19,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:19,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:19,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:19,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:19,746 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 211 [2022-11-20 10:32:19,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 199 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:19,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:19,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 211 [2022-11-20 10:32:19,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:20,166 INFO L130 PetriNetUnfolder]: 109/1086 cut-off events. [2022-11-20 10:32:20,166 INFO L131 PetriNetUnfolder]: For 21/24 co-relation queries the response was YES. [2022-11-20 10:32:20,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 1086 events. 109/1086 cut-off events. For 21/24 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6455 event pairs, 39 based on Foata normal form. 54/997 useless extension candidates. Maximal degree in co-relation 1305. Up to 169 conditions per place. [2022-11-20 10:32:20,189 INFO L137 encePairwiseOnDemand]: 192/211 looper letters, 26 selfloop transitions, 10 changer transitions 0/203 dead transitions. [2022-11-20 10:32:20,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 203 transitions, 493 flow [2022-11-20 10:32:20,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:20,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:32:20,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2022-11-20 10:32:20,213 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9210110584518167 [2022-11-20 10:32:20,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 583 transitions. [2022-11-20 10:32:20,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions. [2022-11-20 10:32:20,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:20,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions. [2022-11-20 10:32:20,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:20,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:20,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:20,239 INFO L175 Difference]: Start difference. First operand has 202 places, 199 transitions, 407 flow. Second operand 3 states and 583 transitions. [2022-11-20 10:32:20,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 203 transitions, 493 flow [2022-11-20 10:32:20,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 203 transitions, 485 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 10:32:20,256 INFO L231 Difference]: Finished difference. Result has 197 places, 197 transitions, 460 flow [2022-11-20 10:32:20,259 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=197, PETRI_TRANSITIONS=197} [2022-11-20 10:32:20,265 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -5 predicate places. [2022-11-20 10:32:20,266 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 197 transitions, 460 flow [2022-11-20 10:32:20,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:20,268 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:20,269 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:20,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:32:20,270 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 10:32:20,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:20,271 INFO L85 PathProgramCache]: Analyzing trace with hash -321305103, now seen corresponding path program 1 times [2022-11-20 10:32:20,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:20,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321253276] [2022-11-20 10:32:20,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:20,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:20,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:20,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321253276] [2022-11-20 10:32:20,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321253276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:20,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:20,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:32:20,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505549035] [2022-11-20 10:32:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:20,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:20,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:20,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:20,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:20,466 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 211 [2022-11-20 10:32:20,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 197 transitions, 460 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:20,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:20,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 211 [2022-11-20 10:32:20,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:20,919 INFO L130 PetriNetUnfolder]: 128/1319 cut-off events. [2022-11-20 10:32:20,919 INFO L131 PetriNetUnfolder]: For 228/255 co-relation queries the response was YES. [2022-11-20 10:32:20,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1894 conditions, 1319 events. 128/1319 cut-off events. For 228/255 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8674 event pairs, 58 based on Foata normal form. 4/1189 useless extension candidates. Maximal degree in co-relation 1611. Up to 257 conditions per place. [2022-11-20 10:32:20,943 INFO L137 encePairwiseOnDemand]: 204/211 looper letters, 41 selfloop transitions, 8 changer transitions 0/214 dead transitions. [2022-11-20 10:32:20,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 214 transitions, 634 flow [2022-11-20 10:32:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:20,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:32:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2022-11-20 10:32:20,946 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8925750394944708 [2022-11-20 10:32:20,946 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2022-11-20 10:32:20,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2022-11-20 10:32:20,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:20,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2022-11-20 10:32:20,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:20,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:20,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:20,952 INFO L175 Difference]: Start difference. First operand has 197 places, 197 transitions, 460 flow. Second operand 3 states and 565 transitions. [2022-11-20 10:32:20,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 214 transitions, 634 flow [2022-11-20 10:32:20,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 214 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:32:20,965 INFO L231 Difference]: Finished difference. Result has 199 places, 204 transitions, 512 flow [2022-11-20 10:32:20,966 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=512, PETRI_PLACES=199, PETRI_TRANSITIONS=204} [2022-11-20 10:32:20,967 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -3 predicate places. [2022-11-20 10:32:20,967 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 204 transitions, 512 flow [2022-11-20 10:32:20,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:20,968 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:20,969 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:20,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:32:20,969 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 10:32:20,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:20,972 INFO L85 PathProgramCache]: Analyzing trace with hash -733487280, now seen corresponding path program 1 times [2022-11-20 10:32:20,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:20,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436973642] [2022-11-20 10:32:20,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:20,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:21,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:21,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436973642] [2022-11-20 10:32:21,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436973642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:21,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:21,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:32:21,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849547201] [2022-11-20 10:32:21,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:21,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:21,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:21,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:21,093 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 211 [2022-11-20 10:32:21,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 204 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:21,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:21,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 211 [2022-11-20 10:32:21,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:22,088 INFO L130 PetriNetUnfolder]: 513/4742 cut-off events. [2022-11-20 10:32:22,088 INFO L131 PetriNetUnfolder]: For 452/503 co-relation queries the response was YES. [2022-11-20 10:32:22,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6381 conditions, 4742 events. 513/4742 cut-off events. For 452/503 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 50255 event pairs, 133 based on Foata normal form. 12/4106 useless extension candidates. Maximal degree in co-relation 6324. Up to 428 conditions per place. [2022-11-20 10:32:22,138 INFO L137 encePairwiseOnDemand]: 202/211 looper letters, 19 selfloop transitions, 6 changer transitions 0/211 dead transitions. [2022-11-20 10:32:22,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 211 transitions, 577 flow [2022-11-20 10:32:22,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:22,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:32:22,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 580 transitions. [2022-11-20 10:32:22,142 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9162717219589257 [2022-11-20 10:32:22,142 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 580 transitions. [2022-11-20 10:32:22,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 580 transitions. [2022-11-20 10:32:22,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:22,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 580 transitions. [2022-11-20 10:32:22,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:22,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:22,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:22,150 INFO L175 Difference]: Start difference. First operand has 199 places, 204 transitions, 512 flow. Second operand 3 states and 580 transitions. [2022-11-20 10:32:22,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 211 transitions, 577 flow [2022-11-20 10:32:22,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 211 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:32:22,164 INFO L231 Difference]: Finished difference. Result has 199 places, 206 transitions, 534 flow [2022-11-20 10:32:22,165 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=199, PETRI_TRANSITIONS=206} [2022-11-20 10:32:22,167 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -3 predicate places. [2022-11-20 10:32:22,168 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 206 transitions, 534 flow [2022-11-20 10:32:22,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:22,169 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:22,169 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:22,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:32:22,169 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 10:32:22,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:22,170 INFO L85 PathProgramCache]: Analyzing trace with hash -327149231, now seen corresponding path program 1 times [2022-11-20 10:32:22,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:22,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468178786] [2022-11-20 10:32:22,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:22,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:22,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:22,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468178786] [2022-11-20 10:32:22,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468178786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:22,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:22,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:32:22,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14111629] [2022-11-20 10:32:22,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:22,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:22,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:22,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:22,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:22,302 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 211 [2022-11-20 10:32:22,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 206 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:22,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:22,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 211 [2022-11-20 10:32:22,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:23,224 INFO L130 PetriNetUnfolder]: 580/5384 cut-off events. [2022-11-20 10:32:23,224 INFO L131 PetriNetUnfolder]: For 820/1331 co-relation queries the response was YES. [2022-11-20 10:32:23,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7608 conditions, 5384 events. 580/5384 cut-off events. For 820/1331 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 59601 event pairs, 190 based on Foata normal form. 22/4749 useless extension candidates. Maximal degree in co-relation 7550. Up to 559 conditions per place. [2022-11-20 10:32:23,263 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 25 selfloop transitions, 4 changer transitions 0/213 dead transitions. [2022-11-20 10:32:23,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 213 transitions, 619 flow [2022-11-20 10:32:23,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:23,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:32:23,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2022-11-20 10:32:23,266 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9020537124802528 [2022-11-20 10:32:23,266 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 571 transitions. [2022-11-20 10:32:23,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 571 transitions. [2022-11-20 10:32:23,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:23,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 571 transitions. [2022-11-20 10:32:23,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:23,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:23,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:23,277 INFO L175 Difference]: Start difference. First operand has 199 places, 206 transitions, 534 flow. Second operand 3 states and 571 transitions. [2022-11-20 10:32:23,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 213 transitions, 619 flow [2022-11-20 10:32:23,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 213 transitions, 603 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:32:23,283 INFO L231 Difference]: Finished difference. Result has 201 places, 209 transitions, 554 flow [2022-11-20 10:32:23,284 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=201, PETRI_TRANSITIONS=209} [2022-11-20 10:32:23,285 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -1 predicate places. [2022-11-20 10:32:23,290 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 209 transitions, 554 flow [2022-11-20 10:32:23,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:23,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:23,291 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:23,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:32:23,292 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 10:32:23,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:23,293 INFO L85 PathProgramCache]: Analyzing trace with hash 743325016, now seen corresponding path program 1 times [2022-11-20 10:32:23,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:23,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420648989] [2022-11-20 10:32:23,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:23,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:23,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:23,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420648989] [2022-11-20 10:32:23,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420648989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:23,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:23,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:32:23,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319023280] [2022-11-20 10:32:23,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:23,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:23,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:23,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:23,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:23,364 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 211 [2022-11-20 10:32:23,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 209 transitions, 554 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:23,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:23,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 211 [2022-11-20 10:32:23,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:24,582 INFO L130 PetriNetUnfolder]: 634/6898 cut-off events. [2022-11-20 10:32:24,583 INFO L131 PetriNetUnfolder]: For 1210/1591 co-relation queries the response was YES. [2022-11-20 10:32:24,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9862 conditions, 6898 events. 634/6898 cut-off events. For 1210/1591 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 81178 event pairs, 205 based on Foata normal form. 27/6148 useless extension candidates. Maximal degree in co-relation 9173. Up to 840 conditions per place. [2022-11-20 10:32:24,631 INFO L137 encePairwiseOnDemand]: 204/211 looper letters, 47 selfloop transitions, 8 changer transitions 0/226 dead transitions. [2022-11-20 10:32:24,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 226 transitions, 738 flow [2022-11-20 10:32:24,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:24,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:32:24,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2022-11-20 10:32:24,634 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8925750394944708 [2022-11-20 10:32:24,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2022-11-20 10:32:24,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2022-11-20 10:32:24,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:24,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2022-11-20 10:32:24,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:24,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:24,639 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:24,639 INFO L175 Difference]: Start difference. First operand has 201 places, 209 transitions, 554 flow. Second operand 3 states and 565 transitions. [2022-11-20 10:32:24,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 226 transitions, 738 flow [2022-11-20 10:32:24,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 226 transitions, 730 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:32:24,645 INFO L231 Difference]: Finished difference. Result has 203 places, 216 transitions, 628 flow [2022-11-20 10:32:24,646 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=203, PETRI_TRANSITIONS=216} [2022-11-20 10:32:24,647 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 1 predicate places. [2022-11-20 10:32:24,647 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 216 transitions, 628 flow [2022-11-20 10:32:24,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:24,648 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:24,648 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:24,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:32:24,648 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 10:32:24,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:24,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1770745474, now seen corresponding path program 1 times [2022-11-20 10:32:24,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:24,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790771181] [2022-11-20 10:32:24,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:24,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:24,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:24,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:24,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790771181] [2022-11-20 10:32:24,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790771181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:24,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:24,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:32:24,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813139533] [2022-11-20 10:32:24,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:24,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:32:24,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:24,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:32:24,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:32:24,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 211 [2022-11-20 10:32:24,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 216 transitions, 628 flow. Second operand has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:24,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:24,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 211 [2022-11-20 10:32:24,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:27,516 INFO L130 PetriNetUnfolder]: 2143/12745 cut-off events. [2022-11-20 10:32:27,516 INFO L131 PetriNetUnfolder]: For 1706/1848 co-relation queries the response was YES. [2022-11-20 10:32:27,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19712 conditions, 12745 events. 2143/12745 cut-off events. For 1706/1848 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 157413 event pairs, 614 based on Foata normal form. 112/11720 useless extension candidates. Maximal degree in co-relation 19569. Up to 1891 conditions per place. [2022-11-20 10:32:27,606 INFO L137 encePairwiseOnDemand]: 203/211 looper letters, 54 selfloop transitions, 8 changer transitions 0/239 dead transitions. [2022-11-20 10:32:27,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 239 transitions, 800 flow [2022-11-20 10:32:27,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:32:27,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:32:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 879 transitions. [2022-11-20 10:32:27,610 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.833175355450237 [2022-11-20 10:32:27,610 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 879 transitions. [2022-11-20 10:32:27,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 879 transitions. [2022-11-20 10:32:27,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:27,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 879 transitions. [2022-11-20 10:32:27,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:27,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:27,617 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:27,617 INFO L175 Difference]: Start difference. First operand has 203 places, 216 transitions, 628 flow. Second operand 5 states and 879 transitions. [2022-11-20 10:32:27,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 239 transitions, 800 flow [2022-11-20 10:32:27,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 239 transitions, 774 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-11-20 10:32:27,635 INFO L231 Difference]: Finished difference. Result has 206 places, 220 transitions, 640 flow [2022-11-20 10:32:27,636 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=640, PETRI_PLACES=206, PETRI_TRANSITIONS=220} [2022-11-20 10:32:27,636 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 4 predicate places. [2022-11-20 10:32:27,637 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 220 transitions, 640 flow [2022-11-20 10:32:27,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:27,637 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:27,638 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:27,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:32:27,638 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 10:32:27,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:27,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1429460792, now seen corresponding path program 1 times [2022-11-20 10:32:27,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:27,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812063564] [2022-11-20 10:32:27,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:27,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:27,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:27,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:27,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812063564] [2022-11-20 10:32:27,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812063564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:27,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:27,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:32:27,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511421761] [2022-11-20 10:32:27,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:27,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:27,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:27,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:27,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:27,750 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 211 [2022-11-20 10:32:27,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 220 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:27,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:27,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 211 [2022-11-20 10:32:27,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:29,110 INFO L130 PetriNetUnfolder]: 594/8266 cut-off events. [2022-11-20 10:32:29,110 INFO L131 PetriNetUnfolder]: For 915/1169 co-relation queries the response was YES. [2022-11-20 10:32:29,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11792 conditions, 8266 events. 594/8266 cut-off events. For 915/1169 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 103490 event pairs, 173 based on Foata normal form. 8/7446 useless extension candidates. Maximal degree in co-relation 11729. Up to 747 conditions per place. [2022-11-20 10:32:29,173 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 27 selfloop transitions, 4 changer transitions 0/227 dead transitions. [2022-11-20 10:32:29,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 227 transitions, 727 flow [2022-11-20 10:32:29,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:29,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:32:29,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2022-11-20 10:32:29,177 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9020537124802528 [2022-11-20 10:32:29,177 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 571 transitions. [2022-11-20 10:32:29,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 571 transitions. [2022-11-20 10:32:29,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:29,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 571 transitions. [2022-11-20 10:32:29,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:29,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:29,184 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:29,184 INFO L175 Difference]: Start difference. First operand has 206 places, 220 transitions, 640 flow. Second operand 3 states and 571 transitions. [2022-11-20 10:32:29,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 227 transitions, 727 flow [2022-11-20 10:32:29,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 227 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:32:29,194 INFO L231 Difference]: Finished difference. Result has 208 places, 223 transitions, 671 flow [2022-11-20 10:32:29,195 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=671, PETRI_PLACES=208, PETRI_TRANSITIONS=223} [2022-11-20 10:32:29,196 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 6 predicate places. [2022-11-20 10:32:29,196 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 223 transitions, 671 flow [2022-11-20 10:32:29,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:29,197 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:29,197 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:29,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:32:29,198 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 10:32:29,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:29,199 INFO L85 PathProgramCache]: Analyzing trace with hash 153293934, now seen corresponding path program 1 times [2022-11-20 10:32:29,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:29,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301257499] [2022-11-20 10:32:29,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:29,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:29,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:29,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:29,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301257499] [2022-11-20 10:32:29,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301257499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:29,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:29,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:32:29,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207080369] [2022-11-20 10:32:29,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:29,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:32:29,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:29,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:32:29,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:32:29,613 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 211 [2022-11-20 10:32:29,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 223 transitions, 671 flow. Second operand has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:29,615 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:29,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 211 [2022-11-20 10:32:29,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:31,026 INFO L130 PetriNetUnfolder]: 1196/8462 cut-off events. [2022-11-20 10:32:31,026 INFO L131 PetriNetUnfolder]: For 1574/1631 co-relation queries the response was YES. [2022-11-20 10:32:31,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14375 conditions, 8462 events. 1196/8462 cut-off events. For 1574/1631 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 94835 event pairs, 347 based on Foata normal form. 211/8178 useless extension candidates. Maximal degree in co-relation 11226. Up to 1519 conditions per place. [2022-11-20 10:32:31,088 INFO L137 encePairwiseOnDemand]: 191/211 looper letters, 43 selfloop transitions, 21 changer transitions 0/233 dead transitions. [2022-11-20 10:32:31,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 233 transitions, 814 flow [2022-11-20 10:32:31,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:32:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:32:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 880 transitions. [2022-11-20 10:32:31,092 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8341232227488151 [2022-11-20 10:32:31,092 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 880 transitions. [2022-11-20 10:32:31,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 880 transitions. [2022-11-20 10:32:31,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:31,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 880 transitions. [2022-11-20 10:32:31,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:31,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:31,099 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:31,099 INFO L175 Difference]: Start difference. First operand has 208 places, 223 transitions, 671 flow. Second operand 5 states and 880 transitions. [2022-11-20 10:32:31,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 233 transitions, 814 flow [2022-11-20 10:32:31,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 233 transitions, 792 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-20 10:32:31,113 INFO L231 Difference]: Finished difference. Result has 204 places, 223 transitions, 708 flow [2022-11-20 10:32:31,114 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=708, PETRI_PLACES=204, PETRI_TRANSITIONS=223} [2022-11-20 10:32:31,115 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 2 predicate places. [2022-11-20 10:32:31,115 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 223 transitions, 708 flow [2022-11-20 10:32:31,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:31,116 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:31,116 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:31,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:32:31,117 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 10:32:31,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:31,117 INFO L85 PathProgramCache]: Analyzing trace with hash 765145678, now seen corresponding path program 1 times [2022-11-20 10:32:31,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:31,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409211618] [2022-11-20 10:32:31,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:31,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:31,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:31,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409211618] [2022-11-20 10:32:31,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409211618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:31,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:31,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:32:31,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74903538] [2022-11-20 10:32:31,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:31,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:32:31,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:31,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:32:31,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:32:31,770 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 211 [2022-11-20 10:32:31,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 223 transitions, 708 flow. Second operand has 7 states, 7 states have (on average 161.28571428571428) internal successors, (1129), 7 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:31,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:31,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 211 [2022-11-20 10:32:31,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:32,350 INFO L130 PetriNetUnfolder]: 229/2503 cut-off events. [2022-11-20 10:32:32,351 INFO L131 PetriNetUnfolder]: For 862/919 co-relation queries the response was YES. [2022-11-20 10:32:32,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4580 conditions, 2503 events. 229/2503 cut-off events. For 862/919 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 19340 event pairs, 60 based on Foata normal form. 63/2466 useless extension candidates. Maximal degree in co-relation 4420. Up to 497 conditions per place. [2022-11-20 10:32:32,365 INFO L137 encePairwiseOnDemand]: 204/211 looper letters, 60 selfloop transitions, 8 changer transitions 0/205 dead transitions. [2022-11-20 10:32:32,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 205 transitions, 747 flow [2022-11-20 10:32:32,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:32:32,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:32:32,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 996 transitions. [2022-11-20 10:32:32,370 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7867298578199052 [2022-11-20 10:32:32,370 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 996 transitions. [2022-11-20 10:32:32,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 996 transitions. [2022-11-20 10:32:32,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:32,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 996 transitions. [2022-11-20 10:32:32,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:32,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:32,380 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:32,380 INFO L175 Difference]: Start difference. First operand has 204 places, 223 transitions, 708 flow. Second operand 6 states and 996 transitions. [2022-11-20 10:32:32,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 205 transitions, 747 flow [2022-11-20 10:32:32,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 205 transitions, 710 flow, removed 13 selfloop flow, removed 6 redundant places. [2022-11-20 10:32:32,389 INFO L231 Difference]: Finished difference. Result has 198 places, 196 transitions, 550 flow [2022-11-20 10:32:32,389 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=550, PETRI_PLACES=198, PETRI_TRANSITIONS=196} [2022-11-20 10:32:32,390 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -4 predicate places. [2022-11-20 10:32:32,391 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 196 transitions, 550 flow [2022-11-20 10:32:32,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 161.28571428571428) internal successors, (1129), 7 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:32,392 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:32,392 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:32,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:32:32,392 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 10:32:32,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:32,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1619670999, now seen corresponding path program 1 times [2022-11-20 10:32:32,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:32,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259475025] [2022-11-20 10:32:32,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:32,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:33,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:33,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:33,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259475025] [2022-11-20 10:32:33,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259475025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:33,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:33,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:32:33,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512754192] [2022-11-20 10:32:33,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:33,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:32:33,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:33,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:32:33,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:32:33,031 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 211 [2022-11-20 10:32:33,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 196 transitions, 550 flow. Second operand has 6 states, 6 states have (on average 182.83333333333334) internal successors, (1097), 6 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:33,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:33,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 211 [2022-11-20 10:32:33,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:33,367 INFO L130 PetriNetUnfolder]: 108/2048 cut-off events. [2022-11-20 10:32:33,367 INFO L131 PetriNetUnfolder]: For 155/215 co-relation queries the response was YES. [2022-11-20 10:32:33,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3232 conditions, 2048 events. 108/2048 cut-off events. For 155/215 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 15206 event pairs, 53 based on Foata normal form. 40/2012 useless extension candidates. Maximal degree in co-relation 3165. Up to 232 conditions per place. [2022-11-20 10:32:33,376 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 14 selfloop transitions, 4 changer transitions 3/195 dead transitions. [2022-11-20 10:32:33,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 195 transitions, 584 flow [2022-11-20 10:32:33,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:32:33,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:32:33,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1105 transitions. [2022-11-20 10:32:33,380 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.872827804107425 [2022-11-20 10:32:33,380 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1105 transitions. [2022-11-20 10:32:33,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1105 transitions. [2022-11-20 10:32:33,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:33,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1105 transitions. [2022-11-20 10:32:33,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:33,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:33,387 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:33,387 INFO L175 Difference]: Start difference. First operand has 198 places, 196 transitions, 550 flow. Second operand 6 states and 1105 transitions. [2022-11-20 10:32:33,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 195 transitions, 584 flow [2022-11-20 10:32:33,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 195 transitions, 566 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:32:33,392 INFO L231 Difference]: Finished difference. Result has 197 places, 192 transitions, 532 flow [2022-11-20 10:32:33,394 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=532, PETRI_PLACES=197, PETRI_TRANSITIONS=192} [2022-11-20 10:32:33,395 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -5 predicate places. [2022-11-20 10:32:33,396 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 192 transitions, 532 flow [2022-11-20 10:32:33,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.83333333333334) internal successors, (1097), 6 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:33,396 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:33,397 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:33,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:32:33,397 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 10:32:33,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:33,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1769093511, now seen corresponding path program 1 times [2022-11-20 10:32:33,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:33,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585954077] [2022-11-20 10:32:33,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:33,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:34,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:34,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585954077] [2022-11-20 10:32:34,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585954077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:34,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:34,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:32:34,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237822937] [2022-11-20 10:32:34,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:34,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:32:34,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:34,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:32:34,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:32:34,111 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 211 [2022-11-20 10:32:34,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 192 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 183.83333333333334) internal successors, (1103), 6 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:34,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:34,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 211 [2022-11-20 10:32:34,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:34,416 INFO L130 PetriNetUnfolder]: 108/1998 cut-off events. [2022-11-20 10:32:34,416 INFO L131 PetriNetUnfolder]: For 121/171 co-relation queries the response was YES. [2022-11-20 10:32:34,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3158 conditions, 1998 events. 108/1998 cut-off events. For 121/171 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 14715 event pairs, 53 based on Foata normal form. 0/1972 useless extension candidates. Maximal degree in co-relation 3094. Up to 232 conditions per place. [2022-11-20 10:32:34,421 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 0 selfloop transitions, 0 changer transitions 191/191 dead transitions. [2022-11-20 10:32:34,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 191 transitions, 564 flow [2022-11-20 10:32:34,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:32:34,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:32:34,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1104 transitions. [2022-11-20 10:32:34,425 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8720379146919431 [2022-11-20 10:32:34,425 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1104 transitions. [2022-11-20 10:32:34,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1104 transitions. [2022-11-20 10:32:34,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:34,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1104 transitions. [2022-11-20 10:32:34,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:34,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:34,431 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:34,431 INFO L175 Difference]: Start difference. First operand has 197 places, 192 transitions, 532 flow. Second operand 6 states and 1104 transitions. [2022-11-20 10:32:34,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 191 transitions, 564 flow [2022-11-20 10:32:34,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 191 transitions, 557 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:32:34,436 INFO L231 Difference]: Finished difference. Result has 194 places, 0 transitions, 0 flow [2022-11-20 10:32:34,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=194, PETRI_TRANSITIONS=0} [2022-11-20 10:32:34,436 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -8 predicate places. [2022-11-20 10:32:34,437 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 0 transitions, 0 flow [2022-11-20 10:32:34,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.83333333333334) internal successors, (1103), 6 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:34,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-11-20 10:32:34,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-11-20 10:32:34,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-11-20 10:32:34,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-11-20 10:32:34,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-11-20 10:32:34,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-11-20 10:32:34,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-11-20 10:32:34,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-11-20 10:32:34,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-11-20 10:32:34,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-11-20 10:32:34,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 24 remaining) [2022-11-20 10:32:34,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 24 remaining) [2022-11-20 10:32:34,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-11-20 10:32:34,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-11-20 10:32:34,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2022-11-20 10:32:34,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2022-11-20 10:32:34,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-11-20 10:32:34,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-11-20 10:32:34,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-11-20 10:32:34,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-11-20 10:32:34,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-11-20 10:32:34,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-11-20 10:32:34,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-11-20 10:32:34,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-11-20 10:32:34,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:32:34,446 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:34,453 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 10:32:34,453 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:32:34,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:32:34 BasicIcfg [2022-11-20 10:32:34,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:32:34,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:32:34,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:32:34,459 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:32:34,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:18" (3/4) ... [2022-11-20 10:32:34,462 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:32:34,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-11-20 10:32:34,469 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 10:32:34,475 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-20 10:32:34,476 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 10:32:34,476 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 10:32:34,476 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:32:34,528 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:32:34,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:32:34,529 INFO L158 Benchmark]: Toolchain (without parser) took 17448.12ms. Allocated memory was 148.9MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 107.0MB in the beginning and 660.0MB in the end (delta: -553.0MB). Peak memory consumption was 584.9MB. Max. memory is 16.1GB. [2022-11-20 10:32:34,529 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:32:34,530 INFO L158 Benchmark]: CACSL2BoogieTranslator took 752.35ms. Allocated memory is still 148.9MB. Free memory was 107.0MB in the beginning and 104.5MB in the end (delta: 2.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 10:32:34,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.18ms. Allocated memory is still 148.9MB. Free memory was 104.5MB in the beginning and 101.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:32:34,530 INFO L158 Benchmark]: Boogie Preprocessor took 62.91ms. Allocated memory is still 148.9MB. Free memory was 101.8MB in the beginning and 100.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:32:34,530 INFO L158 Benchmark]: RCFGBuilder took 806.65ms. Allocated memory is still 148.9MB. Free memory was 100.3MB in the beginning and 79.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 10:32:34,531 INFO L158 Benchmark]: TraceAbstraction took 15663.41ms. Allocated memory was 148.9MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 78.7MB in the beginning and 663.2MB in the end (delta: -584.5MB). Peak memory consumption was 556.6MB. Max. memory is 16.1GB. [2022-11-20 10:32:34,531 INFO L158 Benchmark]: Witness Printer took 69.94ms. Allocated memory is still 1.3GB. Free memory was 663.2MB in the beginning and 660.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:32:34,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 752.35ms. Allocated memory is still 148.9MB. Free memory was 107.0MB in the beginning and 104.5MB in the end (delta: 2.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.18ms. Allocated memory is still 148.9MB. Free memory was 104.5MB in the beginning and 101.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.91ms. Allocated memory is still 148.9MB. Free memory was 101.8MB in the beginning and 100.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 806.65ms. Allocated memory is still 148.9MB. Free memory was 100.3MB in the beginning and 79.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 15663.41ms. Allocated memory was 148.9MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 78.7MB in the beginning and 663.2MB in the end (delta: -584.5MB). Peak memory consumption was 556.6MB. Max. memory is 16.1GB. * Witness Printer took 69.94ms. Allocated memory is still 1.3GB. Free memory was 663.2MB in the beginning and 660.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 280 locations, 24 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 273 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 273 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 113 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 558 IncrementalHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 113 mSolverCounterUnsat, 128 mSDtfsCounter, 558 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=708occurred in iteration=8, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 848 NumberOfCodeBlocks, 848 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 837 ConstructedInterpolants, 0 QuantifiedInterpolants, 2149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 10:32:34,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad98757-0fc9-4797-8645-768f0bf62a16/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE